feat(04-02): add render_uninstall and render_detect with Jinja2 templates

- render_uninstall(printer_name, driver_name, port_name): Remove-Printer/Driver/Port in safe order
- render_detect(printer_name): Get-Printer check with Write-Output + exit 0/1 Intune contract
- uninstall.ps1.j2: all Remove-* with -ErrorAction SilentlyContinue
- detect.ps1.j2: Intune detection contract template

imptune/generators/script_generator.py

@@ -1,8 +1,10 @@
 """Script generator module — renders PowerShell scripts from Jinja2 templates.
 
-Provides render_install() which produces a complete PowerShell install script
-containing WOW64 guard, UAC self-elevation, pnputil two-step driver staging,
-idempotent port/printer creation, and Set-PrintConfiguration with duplex mapping.
+Provides render_install(), render_uninstall(), and render_detect() which produce
+complete PowerShell scripts for Intune deployment:
+- render_install: WOW64 guard, UAC self-elevation, pnputil two-step, idempotent setup
+- render_uninstall: Ordered removal of printer, driver, and port
+- render_detect: Intune detection contract (Write-Output + exit 0/1)
 """
 from pathlib import Path
 
@@ -63,3 +65,41 @@ def render_install(
         paper_size=paper_size,
         collate=str(collate).lower(),
     )
+
+
+def render_uninstall(printer_name: str, driver_name: str, port_name: str) -> str:
+    """Render uninstall.ps1.j2 — removes printer, driver, and port in safe order.
+
+    Removal order: Printer first (so driver is no longer referenced), then Driver,
+    then Port. All operations use -ErrorAction SilentlyContinue for idempotency.
+
+    Args:
+        printer_name: Display name of the printer to remove.
+        driver_name: Exact driver name as registered in Windows.
+        port_name: Port name (e.g. "IP_192.168.1.10").
+
+    Returns:
+        Rendered PowerShell script as a string.
+    """
+    tpl = _env.get_template("uninstall.ps1.j2")
+    return tpl.render(
+        printer_name=printer_name,
+        driver_name=driver_name,
+        port_name=port_name,
+    )
+
+
+def render_detect(printer_name: str) -> str:
+    """Render detect.ps1.j2 — Intune detection script.
+
+    Follows the Intune detection contract: Write-Output + exit 0 when printer
+    is found, exit 1 when absent. Intune considers exit 0 as "app installed".
+
+    Args:
+        printer_name: Display name of the printer to detect.
+
+    Returns:
+        Rendered PowerShell script as a string.
+    """
+    tpl = _env.get_template("detect.ps1.j2")
+    return tpl.render(printer_name=printer_name)

imptune/templates/scripts/detect.ps1.j2

@@ -0,0 +1,8 @@
+# Generated by ImpTune — Detection script for {{ printer_name }}
+$printer = Get-Printer -Name "{{ printer_name }}" -ErrorAction SilentlyContinue
+if ($printer) {
+    Write-Output "Installed: {{ printer_name }}"
+    exit 0
+} else {
+    exit 1
+}

imptune/templates/scripts/uninstall.ps1.j2

@@ -0,0 +1,4 @@
+# Generated by ImpTune — Uninstall script for {{ printer_name }}
+Remove-Printer -Name "{{ printer_name }}" -ErrorAction SilentlyContinue
+Remove-PrinterDriver -Name "{{ driver_name }}" -ErrorAction SilentlyContinue
+Remove-PrinterPort -Name "{{ port_name }}" -ErrorAction SilentlyContinue